lec-14 - What's Next. Transport Layer Transport Layer...

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09 Sept 2008  BITS C481 (Computer Networks) 1 What’s Next… Transport Layer Transport Layer Services Multiplexing/Demultiplexing Connectionless and Connection Oriented TCP and UDP Overview of UDP Overview of TCP Reliable data transfer Flow control Congestion control
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09 Sept 2008  BITS C481 (Computer Networks) 2 Transport vs. network layer Network layer: logical communication between hosts Transport layer: logical communication between processes Relies on, enhances, network layer services Recall Household analogy: 12 kids sending letters to 12 kids Processes = kids App messages = letters in envelopes Hosts = houses Transport protocol = Ann and Bill Network-layer protocol = postal service
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09 Sept 2008  BITS C481 (Computer Networks) 3 Multiplexing/Demultiplexing application transport network link physical application transport network link physical application transport network link physical P2 P3 P4 P1 host 1 host 2 host 3 = process = socket Delivering received segments to correct socket Demultiplexing at rcv host: Gathering data from multiple sockets, enveloping data with  header (later used for  demultiplexing) Multiplexing at send host:
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09 Sept 2008
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This note was uploaded on 07/20/2009 for the course INFORMATIO BITS C481 taught by Professor Prof.virendrasinghshekhawat during the Fall '08 term at Birla Institute of Technology & Science, Pilani - Hyderabad.

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lec-14 - What's Next. Transport Layer Transport Layer...

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